# Webb links interstellar comet 3I/ATLAS to worlds beyond Neptune through similar ice signatures

- Source: Phys.org
- Published: 2026-10-27T14:00:13+00:00
- Category: Science
- Original: https://phys.org/news/2026-10-webb-links-interstellar-comet-3iatlas.html
- Canonical: https://groundlevelnews.com/story/webb-links-interstellar-comet-3i-atlas-to-worlds-beyond-neptune-throug-de3099/

A Southwest Research Institute–led study used NASA's James Webb Space Telescope to examine ice grains streaming from interstellar comet 3I/ATLAS, just the third object from beyond our solar system ever identified. The observations point to tiny aggregates of water ice and dust, about a micron or smaller.

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